Thermocouple open circuit detector

Details Thermocouple open circuit detector Thermocouple open circuit detector

1983-03-03

1985-01-29

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

With specified recording arrangement

34087017, 346 33TP, 346 34, G01K 0102, G01R 3102

Patent

active

044962509

ABSTRACT:
A thermocouple open-circuit detector is made insensitive to noise pick-up in the thermocouple by increasing the bias on the detecting amplifier beyond the point where it would be affected by the noise and providing a means for reducing that bias during the period when the pulses that test the thermocouple are present. The test pulse will then trigger the detecting amplifier on when the thermocouple is open.

REFERENCES:
patent: 2937369 (1960-05-01), Newbold et al.
patent: 3755688 (1973-08-01), Hohler
patent: 3760265 (1973-09-01), Hutch
patent: 4166243 (1979-08-01), West et al.
patent: 4307335 (1981-12-01), Paulson

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